He {{U}}confesses{{/U}} that he has done it.

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H.e is twenty He is a doctor He’s very well He’s English

happiest happy h

how old is he how old he is h

H，C He，B C，N H，He

No matter he is busy No matter how busy he is H

what does he do what he does h

H He C H和He

Who How H

同温同压下，H₂与He的体积比为a∶2b 同温同压下，若a=b则H₂与He的物质的量比为1∶1 体积相同时，He的质量一定大于H₂ 同温同压下，若二者的物质的量相等，其体积也相等

did he didn’t he won’t he will h<]

H、C H、N H、O H、He

A／He C3H／He／Ola C3H/He DBA

isn't is h

has, does have, doesn't h

同温同压下，H.2与He的体积比为a:2b 同温同压下，若a=b，则H.2和He物质的量比为2:1 体积相同时，He的质量一定大于H.2 同温同压下,若二者的物质的量相等，其体积也相等

He is a student. He likes reading. H

18hE24h 5h 6h 12h

同温同压下，H₂和He的体积比是a：2b 同温同压下，若a=b，则H₂与He的物质的量之比是1：1 体积相同时，He的质量一定大于H₂的质量同温同压下，若二者的物质的量相等，其体积也相等。

what he is who he is h